cython

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__doc__ = """
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    >>> s = Spam()
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    >>> s.get_tons()
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    17
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    >>> s.set_tons(42)
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    >>> s.get_tons()
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    42
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"""
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import platform
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if not hasattr(platform, 'python_implementation') or platform.python_implementation() == 'CPython':
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    __doc__ += """
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    >>> s = None
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    42 tons of spam is history.
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"""
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cdef class Spam:
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    cdef int tons
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    def __cinit__(self):
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        self.tons = 17
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    def __dealloc__(self):
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        print self.tons, u"tons of spam is history."
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    def get_tons(self):
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        return self.tons
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    def set_tons(self, x):
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        self.tons = x
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